Radial point interpolation method for no-yielding surface models

摘要

This paper proposes a numerical algorithm for endochronic constitutive law using radial point interpolation method. First, a radial point interpolation method (radial PIM) is presented, which extends the compactly supported radial function to include polynomials terms. Then, a weak form based on reference constitutive law is developed in an incremental form. The accuracy of radial PIM is evaluated by a linear function and a complex function. As an example, an endochronic constitutive law for normally consolidated soils is used to exploit the applicability of the proposed method in foundation problem.